Wood LatheChina 12mm Standard Square Straight Tungsten Carbide Replaceable Cutter Inserts Knives 12X12X1.5mm for Woodworking Spiral Helical Planer Head and DIY Wood Lathe, Find details about China Carbide Insert Knives, Carbide Insert Cutter from 12mm Standard Square Straight Tungsten Carbide Replaceable Cutter Inserts Knives 12X12X1.5mm for Woodworking Spiral Helical Planer Head and DIY Wood Lathe